gbos.git/c/mkdir.c, branch mastergbos - a tiny Unix-flavored OS for the Game Boy Color (kernel, shell, coreutils in C, RAM filesystem)https://git.sl0p.foo/gbos.git/atom/c/mkdir.c?h=master2026-07-17T22:38:38Zrefactor: c/ -> usr/, compiled program blobs out of the source tree2026-07-17T22:38:38Zuseruser@clank2026-07-17T22:38:38Zurn:sha1:ba2d7ae1d7b319645b10aaa31a7f664f9f80c25c
Userland sources live in usr/ (fits the Unix theme better than 'c').
SDCC output .bin blobs land in build/usr/ with the other build artifacts
instead of littering the source dir; programs.asm INCBINs them from there.
Byte-identical ROM.
fs rewrite stage 3: nested directories, paths, cwd (cd/mkdir/ls)2026-07-16T10:49:19Zuseruser@clank2026-07-16T10:49:19Zurn:sha1:5fefd233769a56caefdb2ffecaa9fb8b9ec6db86
- directories generalized: dir_find/dir_add/dir_remove take any dir inode;
every dir carries '.'/'..'. Path resolution (resolve / resolve_parent) walks
absolute or cwd-relative paths; open/mkdir/chdir/remove/opendir take paths.
- per-process cwd: PROC_CWD in the PCB (root by default, inherited on fork);
sys_chdir sets it, sys_opendir points ls at any directory.
- shell: 'cd' builtin + cwd-aware prompt; 'mkdir'/'ls <dir>' tools; 'exit'/'quit'
and EOF call poweroff() (clean shutdown via the $ED opcode -> reliable save).
- three HL/buffer-clobber bugs fixed along the way: resolve didn't preserve the
path cursor across dir_find; cur_cwd clobbered HL; resolve_parent set the final
name before resolve() overwrote wFsNameBuf (now copied after).
- verified: nested mkdir/cd/save, multi-level paths (cat docs/sub/b), and the
whole tree persists across a reboot.
- README: document directories + the poweroff opcode.